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Data Models into Database Designs

Data Models into Database Designs
Which is not true about surrogate keys?

They have meaning to the user.
They are numeric.
They are short.
They are fixed.

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Data Models into Database Designs
Which of the following column properties specifies whether or not cells in a column must contain a data value?

Default value
Data constraints
Null status
Data type

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Data Models into Database Designs
Which of the following column properties would be used to specify that cells in a column must be immediately filled with a monetary value of $10,000?

Null status
Data constraints
Default value
Data type

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Data Models into Database Designs
A foreign key is:

a column containing the primary key of another table.
used to define null status.
used to define data types.
All of these

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Data Models into Database Designs
For every relationship, how many possible sets of minimum cardinalities are there?

Three
Six
Four
Two

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Data Models into Database Designs
When the parent entity is required, a new child row can always be inserted.

True
False

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